HR6979

HR6979 is a double star in the constellation of Draco.

HR6979 visual magnitude is 6.59. Because of its reltive faintness, HR6979 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR6979:

Color of HR6979 ⬤

Magnitude of HR6979 6.59

Class

VISIBILITY RIGHT NOW HR6979 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 47°.

Celestial coordinates and finder chart of HR6979

HR6979 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6979 are provided in the following table:

Right Ascension J2000 18h 31m 14s

Declination J2000 +65° 26’ 09”

Galactic Longitude 95.35°

Galactic Latitude 26.57°

Constellation Draco

The simplified sky map below shows the position of HR6979 in the sky:

Simplified finder chart for HR6979.

Visibility of HR6979 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR6979 is circumpolar and transits at 01:46 UTC (altitude: 76.0°)

Digitized Sky Survey image of HR6979

The image below is a photograph of HR6979 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR6979 is -0.019 arcsec per year in Right Ascension and 0.071 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR6979. The red arrow shows the motion of HR6979 during the next 10000 years (-3.17 arcmin in Right Ascension and 11.83 arcmin in declination);

Distance of HR6979 from the Sun and relative movement

HR6979 is distant 442.33 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 135.69 pc

Distance (light year) 442.33 ly

Heliocentric radial velocity -9 km/s

Proper Motion RA -0.019 arcsec/year

Proper Motion Dec 0.071 arcsec/year

Spectral properties of HR6979

HR6979 belongs to spectral class A8

Absolute magnitude 0.93

Spectral Type A8

Color Index (B-V) 0.3

Temperature of HR6979 7462K

The red dot in the diagram below shows where HR6979 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR6979. Attribution: Richard Powell / CC BY-SA

HR6979 star system properties

HR6979 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR6979 double sysyem:

Main star magnitude 6.59

Secondary star magnitude 10.79

Magnitude difference 4.2

Separation 26.6 arcsec

Alternative designations of HR6979

Henry Draper Catalogue HD171653

SAO Catalogue SAO17912

Hipparcos Catalogue HIP90780

Durchmusterung Catalogue BD+65 1276

In Evidence

Other stars in Draco